feat: Add github actions workflow for PR

.github/workflows/build-and-test.yml

@@ -0,0 +1,79 @@
+name: Build and test
+
+on:
+  pull_request:
+    branches:
+      - master
+
+env:
+  REGISTRY: docker.io
+  IMAGE_NAME: cdalvaro/saltstack-master
+  IMAGE_TAG: ci
+  GITHUB_REF_NAME: ${{ github.event.release.tag_name }}
+
+jobs:
+  build:
+    name: Build Docker image
+    runs-on: ubuntu-latest
+    timeout-minutes: 45
+    steps:
+      - name: Set env variables
+        run: |
+          echo ::set-env name=CACHE_FROM::"${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:latest"
+          echo ::set-env name=DOCKER_IMAGE::"${{ env.REGISTRY }}/${{ env.IMAGE_NAME }}:${{ env.IMAGE_TAG }}"
+
+      - name: Checkout repository
+        uses: actions/checkout@v2
+
+      - name: Cache lastest image
+        run: docker pull ${CACHE_FROM}
+
+      - name: Build Docker image
+        run: |
+          docker build \
+            --build-arg VCS_REF=${GITHUB_REF_NAME:-${GITHUB_SHA}} \
+            --build-arg BUILD_DATE="$(date +"%Y-%m-%d %H:%M:%S%:z")" \
+            --cache-from ${CACHE_FROM} \
+            --tag ${DOCKER_IMAGE} .
+
+      - name: Save docker image
+        run: |
+          mkdir -p docker/
+          docker save -o docker/docker-image.tar ${DOCKER_IMAGE}
+
+      - name: Upload image for test job
+        uses: actions/upload-artifact@v2
+        with:
+          name: docker-image
+          path: docker/docker-image.tar
+
+  test:
+    name: Test Docker image
+    needs: build
+    runs-on: ubuntu-latest
+    env:
+      CONTAINER_NAME: salt_master_ci
+    steps:
+      - name: Download docker image from build job
+        uses: actions/download-artifact@v2
+        with:
+          name: docker-image
+          path: docker/
+
+      - name: Load docker image from build job
+        run: docker load -i docker/docker-image.tar
+
+      - name: Launch docker container
+        run: docker run --rm -d --name "${CONTAINER_NAME}" "${IMAGE_NAME}:${IMAGE_TAG}"
+
+      - name: Show container info
+        run: docker container ls
+
+      - name: Wait for salt-master bootup
+        run: sleep 60
+
+      - name: Show salt versions
+        run: docker exec "${CONTAINER_NAME}" salt --versions
+
+      - name: Test image calling healthcheck
+        run: docker exec "${CONTAINER_NAME}" /usr/local/sbin/healthcheck